. Bulletin of the Department of Agriculture. Agriculture; Agriculture. scription of the genus 224 BULLETIISr 772, U. S. DEPAETMENT OF AGKI-CULTURE. is chosen as the type, since it is the only species tliat agrees witli his de- in having solitai-y spikelets. The other species that he mentions are now referred to other genera, Milium digitatum to Syntherisma, M. cimicinum to Coridochloa, M. panicetmi to Syntherisma. In a subsequent paragrapli the autlior briefly describes a new species, A. aureus, which he tliinks ought to belong to this genus. Nash^ selects A. aureus as the type of Axonopu
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. scription of the genus 224 BULLETIISr 772, U. S. DEPAETMENT OF AGKI-CULTURE. is chosen as the type, since it is the only species tliat agrees witli his de- in having solitai-y spikelets. The other species that he mentions are now referred to other genera, Milium digitatum to Syntherisma, M. cimicinum to Coridochloa, M. panicetmi to Syntherisma. In a subsequent paragrapli the autlior briefly describes a new species, A. aureus, which he tliinks ought to belong to this genus. Nash^ selects A. aureus as the type of Axonopus. Cabrera Lag., Gen. and Sp. Nov. 5. 1816. The type is C. clirysoMe'pharis Lag., the only species mentioned. To this group belongs Axonopus aureus mentioned above. Anastrophus Schlecht., Bot. Zeit. 8: 681. 1850. The type is Paspalum platyculmuin Du Petit-Thou., the first of several species referred to the genus. This is probably the same as Axonopus compressus, or at least closely allied to that species. Lappagopsis Steud., Syn. PI. Glum. 1: 112. 1854. The type is L. bijuga Steud., the only species de- scribed. The most important species of the genus in the United States is Axonopus coTnpres- siis (Swartz) Beauv. (fig. 135), usually called carpet grass in the South. This is a stolonif erous per- ennial, with compressed stems, comparatively short, flat, broadly linear, abruptly pointed blades, and slender spikes somewhat digi- tate at the summit of the culms. Carpet grass is common in the Tropics and extends in the United States from Virginia to Florida and Texas in the lowland along the coast. It thrives particularly in alluvial or mucky open ground, where it becomes the dominant. Fig. 135. -Carpet grass, Axonopus compressus. Plant, fertile floret, X 10. two views of spikelet and grass. Carpet grass is the predominant pasture grass in the region mentioned, but is of little importance on sandy soil and does not thrive on the uplands. In the region where it thrives as a pasture
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